/Engine/Source/Runtime/CoreUObject/Public/UObject/PackageResourceManager.h
Call the callback on all packages in the package repository that are in the given subdirectory of a package mount
void IteratePackagesInPath ( FStringView PackageMount, FStringView FileMount, FStringView RootRelPath, [FPackagePathVisitor](API\Runtime\CoreUObject\UObject\IPackageResourceManager\FPackagePathVisitor) Callback )